DOF - Depth of Field, which mean the distance between the nearest and farthest objects in your picture to remain focused.
Smaller aperture - deeper DOF, which mean more in the scene to be in focus.
bigger aperture - thinner DOF, which mean less of the scene is in focus.
For landscape shoot, normally we like to have more of the scene sharp, infact we might want everything to be sharp, so we close the aperture as much as possible.
For portrait, it is abit more tricky. Sometime we want the model to be sharp, her face, her body and so on and so for, but we don't want the background to be sharp, so we don't close the aperture too much... however, we need to calculate, so we might not want to open the aperture too large too.
Alot of this are trial an error, and you need to practice alot to know at which distance of yourself to your object in relation to the f-val;ue, shutter speed, ISO value and stuff. Anyway, I am learning too... kind of new to photography too.
Hmm very useful informations Rhino thank you! Half geek, let's practice more together. Hahaha
Cheap lenses are not good AND Good lenses are not cheap!
the nex5n is a first rate camera and has the largest sensor in a very compact body, so you are getting better quality pictures if you can take the size of the body + lenses for a beginner.
even if you don't know what your needs are at the moment, the nex5n with dual kit lens covers everything you will need.
Last edited by Halfgeek; 29th November 2011 at 09:35 AM.
I would like to attempt a night shoot today near my place will post pics
I learned many! thanks guys.